There's lots of news on the Audi RS6 lately. It's understandable considering how wicked this new top-of-the-line A6 is expected to be. Spy photos, spy video and even spy rumors. One of the things we've focused on is that this new über-Audi will be powered by a boosted version of Audi's not-Gallardo-derived V10. Frequently we say a turbocharged version of that mill will be powering the RS6, providing somewhere north of 500 hp, possibly even 600. Well, now we are wondering if that blower might actually sit atop the intake rather than somewhere along the exhaust path. It's quite possible this supersedan will be powered by a supercharged V10 instead of a turbo.

This latest batch of spy photos from KGP shows an undisguised prototype with some mismatched color panels, but offers clear views of the upgraded fascias and side sills. The S6 LED light strips on the bumper have been removed, but there are larger air intakes up front now. There's also a serious looking new diffuser and a single exhaust pipe in place of the S6's dual pipes out back. It's a fairly aggressive look, but not as radical as we might have expected for a vehicle with as much power as some expect the RS6 to have. We'll see the final version this fall at the Frankfurt Motor Show.

[Source: Winding Road]